<div id="viewer-container"></div>
<script>
  let viewer = undefined
  function initViewer() {
    viewer = new DC.Viewer('viewer-container')
    viewer.scene.canvas.setAttribute('tabIndex', 0)
    let baselayer_midnight = DC.ImageryLayerFactory.createBaiduImageryLayer({
      style: 'dark'
    })
    viewer.addBaseLayer(baselayer_midnight, {
      iconUrl: 'examples/images/icon/midnight.png',
      name: '午夜蓝'
    })
    let chart = new DC.Chart()
    viewer.use(chart)
    viewer.flyToPosition(
      new DC.Position(108.198353, 20.758452, 10733735.96, 0, -90, 0),
      () => {
        chart.setOption(getOption())
      }
    )
  }

  function getOption(e) {
    var chinaGeoCoordMap = {
      黑龙江: [127.9688, 45.368],
      大庆: [126.9688, 45.868],
      内蒙古: [110.3467, 41.4899],
      吉林: [125.8154, 44.2584],
      北京: [116.4551, 40.2539],
      辽宁: [123.1238, 42.1216],
      河北: [114.4995, 38.1006],
      天津: [117.4219, 39.4189],
      山西: [112.3352, 37.9413],
      陕西: [109.1162, 34.2004],
      甘肃: [103.5901, 36.3043],
      宁夏: [106.3586, 38.1775],
      青海: [101.4038, 36.8207],
      新疆: [87.9236, 43.5883],
      西藏: [91.11, 29.97],
      四川: [103.9526, 30.7617],
      重庆: [108.384366, 30.439702],
      山东: [117.1582, 36.8701],
      河南: [113.4668, 34.6234],
      江苏: [118.8062, 31.9208],
      安徽: [117.29, 32.0581],
      湖北: [114.3896, 30.6628],
      浙江: [119.5313, 29.8773],
      福建: [119.4543, 25.9222],
      江西: [116.0046, 28.6633],
      湖南: [113.0823, 28.2568],
      贵州: [106.6992, 26.7682],
      云南: [102.9199, 25.4663],
      广东: [113.12244, 23.009505],
      广西: [108.479, 23.1152],
      海南: [110.3893, 19.8516],
      上海: [121.4648, 31.2891]
    }
    var chinaDatas = [
      [
        {
          name: '黑龙江',
          value: 0.88
        }
      ],
      [
        {
          name: '内蒙古',
          value: 0.12
        }
      ],
      [
        {
          name: '吉林',
          value: 0.89
        }
      ],
      [
        {
          name: '辽宁',
          value: 0.86
        }
      ],
      [
        {
          name: '河北',
          value: 0.88
        }
      ],
      [
        {
          name: '北京',
          value: 0.83
        }
      ],
      [
        {
          name: '天津',
          value: 0.71
        }
      ],
      [
        {
          name: '山西',
          value: 0.63
        }
      ],
      [
        {
          name: '陕西',
          value: 0.56
        }
      ],
      [
        {
          name: '宁夏',
          value: 0.17
        }
      ],
      [
        {
          name: '云南',
          value: 0.11
        }
      ],
      [
        {
          name: '四川',
          value: 1
        }
      ],
      [
        {
          name: '重庆',
          value: 0.8
        }
      ],
      [
        {
          name: '山东',
          value: 0.77
        }
      ],
      [
        {
          name: '河南',
          value: 0.75
        }
      ],
      [
        {
          name: '江苏',
          value: 0.88
        }
      ],
      [
        {
          name: '安徽',
          value: 0.73
        }
      ],
      [
        {
          name: '湖北',
          value: 0.75
        }
      ],
      [
        {
          name: '浙江',
          value: 0.82
        }
      ],
      [
        {
          name: '福建',
          value: 0.67
        }
      ],
      [
        {
          name: '江西',
          value: 0.71
        }
      ],
      [
        {
          name: '湖南',
          value: 0.75
        }
      ],
      [
        {
          name: '广东',
          value: 0.78
        }
      ],
      [
        {
          name: '海南',
          value: 0.1
        }
      ],
      [
        {
          name: '新疆',
          value: 0
        }
      ],
      [
        {
          name: '上海',
          value: 0.91
        }
      ]
    ]

    var convertData = function(data) {
      var res = []
      for (var i = 0; i < data.length; i++) {
        var dataItem = data[i]
        var fromCoord = chinaGeoCoordMap[dataItem[0].name]
        var toCoord = [126.9688, 45.868]
        if (fromCoord && toCoord) {
          res.push([
            {
              coord: fromCoord,
              value: dataItem[0].value
            },
            {
              coord: toCoord
            }
          ])
        }
      }
      return res
    }
    var series = []
    var colors = ['#f44336', '#fc9700', '#ffde00', '#ffde00', '#00eaff']
    ;[['大庆', chinaDatas]].forEach(function(item, i) {
      let color = colors[Math.floor(Math.random() * colors.length)]
      series.push(
        {
          type: 'lines',
          zlevel: 2,
          coordinateSystem: 'GLMap',
          effect: {
            show: true,
            period: 4, //箭头指向速度，值越小速度越快
            trailLength: 0.02, //特效尾迹长度[0,1]值越大，尾迹越长重
            symbol: 'arrow', //箭头图标
            symbolSize: 5 //图标大小
          },
          lineStyle: {
            normal: {
              width: 1, //尾迹线条宽度
              opacity: 1, //尾迹线条透明度
              curveness: 0.3, //尾迹线条曲直度
              color: color
            }
          },
          data: convertData(item[1])
        },
        {
          type: 'effectScatter',
          coordinateSystem: 'GLMap',
          zlevel: 2,
          rippleEffect: {
            //涟漪特效
            period: 4, //动画时间，值越小速度越快
            brushType: 'stroke', //波纹绘制方式 stroke, fill
            scale: 4 //波纹圆环最大限制，值越大波纹越大
          },
          label: {
            normal: {
              show: true,
              position: 'right', //显示位置
              offset: [5, 0], //偏移设置
              formatter: function(params) {
                //圆环显示文字
                return params.data.name
              },
              fontSize: 13
            },
            emphasis: {
              show: true
            }
          },
          symbol: 'circle',
          symbolSize: function(val) {
            return 5 + val[2] * 5 //圆环大小
          },
          itemStyle: {
            normal: {
              show: false,
              color: color
            }
          },
          data: item[1].map(function(dataItem) {
            return {
              name: dataItem[0].name,
              value: chinaGeoCoordMap[dataItem[0].name].concat([
                dataItem[0].value
              ])
            }
          })
        },
        //被攻击点
        {
          type: 'scatter',
          coordinateSystem: 'GLMap',
          zlevel: 2,
          rippleEffect: {
            period: 4,
            brushType: 'stroke',
            scale: 4
          },
          label: {
            normal: {
              show: true,
              position: 'right',
              //offset:[5, 0],
              color: '#0f0',
              formatter: '{b}',
              textStyle: {
                color: '#0f0'
              }
            },
            emphasis: {
              show: true,
              color: '#f60'
            }
          },
          symbol: 'pin',
          symbolSize: 50,
          data: [
            {
              name: item[0],
              value: chinaGeoCoordMap[item[0]].concat([10])
            }
          ]
        }
      )
    })

    return {
      animation: false,
      GLMap: {},
      series: series
    }
  }

  DC.ready(initViewer)
</script>
